/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/INiagaraCompiler.h
Starts the async compilation of a script and returns the job handle to retrieve the results
int32 CompileScript ( const FStringView GroupName, const [FNiagaraCompileOptions](API\Plugins\Niagara\FNiagaraCompileOptions) & InOptions, const [FNiagaraTranslateResults](API\Plugins\NiagaraEditor\FNiagaraTranslateResults) & InTranslateResults, const FNiagaraTranslatorOutput & TranslatorOutput, const [FString](API\Runtime\Core\Containers\FString) & TranslatedHLSL )